Finding the Fourth Proportional to 2,586,870.32, 3,880,906.11 and 881,028.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586,870.32 : 3,880,906.11 = 881,028.38 : x
2. Step 2: Convert to fraction form
   2,586,870.32/3,880,906.11 = 881,028.38/x
3. Step 3: Cross multiply
   2,586,870.32x = 3,880,906.11 × 881,028.38
4. Step 4: Simplify right side
   2,586,870.32x = 3,419,188,432,727.67
5. Step 5: Solve for x
   x = 3,419,188,432,727.67/2,586,870.32
6. Step 6: Final answer
   x = 1,321,747.14